if you use Term::ANSIColor you can do it like this: 
use Term::ANSIColor;
print "Please fill in ".color("underline")."one".color("reset")." valu
+e\n";

[download]
but your terminal (i.e color-xterm) must support this too.

MP

Originally posted as a Categorized Answer.

In reply to Re: How do I print characters with underline or bold? by Monky Python
in thread How do I print characters with underline or bold? by eyal_kle

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